Reinforced concrete-form.



C. A. BAIER & C. E. MERRITT.

REINFORCED CONCRETE FORM.

APPLICATION FILED MAR. s. 1916.

Patented Jan. 8, 1918.

. E. INVENTORS.

\ WITNESSES CHARLES A. BAIER AND CHARLES E. MERRITT, OF KANSAS CITY,MISSOURI.

REINFORCED CONCRETE-FORM.

Specification of Letters Patent.

Application filed March 6, 1916. Serial No. 82,373.

To all whom it may concern:

Be it known that we, CHARLES A. BAIER and CHARLES E. MERRrr'r, citizensof the United States, and residents of Kansas City,

in the county of Jackson and State of Misthe provision of a form whichmay be readily, efi'ectively and conveniently tightened and sustainedthereby against expansion against the strain of the material.

Other objects of the invention will become apparent in the following.detail description with reference to the accompanying drawing, forming apart hereof.

In this drawing, Figure 1 is a side elevation view of a form showing thetightening means applied thereto; Fig. 2 is an end View of the form,showing the tightening means applied theretopFig. 3 is a sectional view,taken on the line 33 Fig.1; Fig. 4 is a detail view of one of thetighteners employed; Fig. 5 is a sectional view of another tighteneremployed, taken on the line ;55 Fig. 6; and Fig. 6 is an end view of thefastener shown in Fig. 5.

Corresponding and like parts are referred toin the following-descriptionand indicated in all the views of the accompanying drawing by the samereference characters.

, Let the numeral 5 designate a rectangular form in its entirety, thesame being composed of wood sides 6, 7, 8 and 9, whichform. a hollow inWlllCh the material is placed for molding. These sides may, however, be.composed of any kind of material, and it is not necessary that theyshould be composed of wood. Transverse members 10 and 12 arerespectively secured to the sides 6 and8, said members projecting beyondsaid sides, as shown at 13, while the sides 7 and 9 are provided withsimilar transverse members 14 and 15 secured respectively to said sidesand projecting beyond the latter, as shown at 16. -Metallic bands 17 arepassed around the form and their extremities respectively connected withspindles 18 and 19, which are journaled in channel blocks 20, theextremities of said bands being connected with said spindles 18 and 19by inserting said extremities in recesses formed in said spindles, asshown at 21. The opposite extremities of the spindles 18 and 19 arerectangular inshape for engagement by a wrench, by means of whichwrench, the spindles maybe revolved for Winding the bands thereon andthus tightenin the latter around the form 5. The spindles 18 and 19project beyond the opposite sides of the channel blocks 20 and areprovided with openings 22 therethrough on opposite sides of the channelblocks 20, through which openings, pins 23 may be inserted and engagedin the form 5 for preventing reverse rotation of the spindles 18 and 19after the bands 17 have been tightened. These pins 23 may be eitherprojected into the form 5, as shown at 24, or merely rest against thelatter in positions at angles to the vertical position shown in Fig. 6.

The extremities of the-transverse members 10 and 12, and 14 and 15 areconnected by means of cables 25, loop shaped and its extremitiesconnected with spindles 26, journaled in the sides of channel blocks 27,said blocks being set on the projecting extremlties of the beams 12, 10,14 or 15, as the case may be. The spindles 26 project beyond the sidesof the channel blocks 27, and the extremities of the cables 25 areconnected with said projecting portions of said spindles 26 by beinginserted in openings 28 in said spindles. The extremities of thespindles 26 are rectangular shaped for engagement therewith of a wrenchfor revolving said spindles to cause the cable 25 to be wound thereon.The tightening of these cables 25 in this manner, causes the transversemembers 10, 12, 14 and 15 to be respectively drawn. toward each otherand thereby prevent expansion of the sides of the form 5 under theinfluence of the pressure of the mortar within the form. After thecables 25 have been sufficiently tightened, 1n the manner abovedescribed, pins 29 are inserted through openings 30 in the spindle 26,the said pins being extended into recesses 31 of the channel blocks forlocking the spindles 26 against revolving in the reverse direction. Itis not necessary however that these pins 29 should be inserted in therecesses 31, as one extremity of the said pins may be engaged with thechannel blocks 27 and thereby prevent'the said spindles from revolving n.form of the invention,

the reverse direction under the influence of the tension of the cables25.

It will readily be understood that the invention is susceptible ofvariations in form ent is:

1. A device of the class described, comprising side members transversemembers secured to opposite side members of said device and projectingbeyond saidside members, channel blocks set on the projectingextremities of one of said transverse mem-' bers, flexible loop membersreceiving the projecting extremities of the other transverse member, anda winding s indle journaled in each of said channel bloc s with whichsaid flexible loop members are connected.

2. A device of the class described, comprising side form members,transverse members secured to opposite side form members and projectingat their extremities beyond said side form members, channel blocks seton the projecting extremities of-one of said transverse members,flexible loop members receiving the projecting extremities of the othertransverse member, a winding spindle j ournaled in each of said channelblocks and projecting at their extremities beyond the sides .of saidchannel blocks, the said loop members being connected with theprojecting extremities of said winding spindles,

said winding spindles having openings therein between the sides of saidchannel blocks, and pins adapted to be inserted between the sides ofsaid channel blocks through said openings. J

In testimony whereof, we aflixour signatures in the presence of twowitnesses.

- CHAS.- A. BAIER. CHAS. E. MERRITT.

Witnesses:

WILLIAM T. LAW, PEARL .OVERTON.

